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Do-It-Yourself (DIY) Question & Answer Forum
Joining different size cables
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<blockquote data-quote="DonClif" data-source="post: 544057" data-attributes="member: 36659"><p>I'm currently training so this is a genuine question:</p><p>Am I understanding correctly, that OP wants to join a 4mm circuit to an existing 2.5mm ring?</p><p>As I understand from BS7671, you can spur with smaller cable using a fused spur, but no mention of increasing to a larger size for certain parts of the installation.</p><p>Also, isn't the cable supposed to be completely wired from start to finish based on the most detrimental part of the run?</p><p></p><p>Am I missing something?</p><p></p><p>Again, genuinely asking.</p></blockquote><p></p>
[QUOTE="DonClif, post: 544057, member: 36659"] I'm currently training so this is a genuine question: Am I understanding correctly, that OP wants to join a 4mm circuit to an existing 2.5mm ring? As I understand from BS7671, you can spur with smaller cable using a fused spur, but no mention of increasing to a larger size for certain parts of the installation. Also, isn't the cable supposed to be completely wired from start to finish based on the most detrimental part of the run? Am I missing something? Again, genuinely asking. [/QUOTE]
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Joining different size cables
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